Science Review PDF

Look at the Biodiversity slides (Biomes, Community Stability and Biodiversity) Be able to know the following terms: **Biome** (what it is and what makes them unique) \~ An area of the planet that can be classified according to the **plants** and **animals** that live in it. 4 [Characteristics of...

Look at the Biodiversity slides (Biomes, Community Stability and Biodiversity) Be able to know the following terms: **Biome** (what it is and what makes them unique) \~ An area of the planet that can be classified according to the **plants** and **animals** that live in it. 4 [Characteristics of Biomes] \~ **Temp, soil, Light, water** Different types of [biomes] **Alpine** \~ **mountains, cold,** [small vegetation] **Chaparral** \~ hot and dry, **mild winters,** fire and drought **Desert** \~ **cold or hot,** [little vegetation ] **Grassland** \~ [large], rolling terrain, [few trees], fire **Savanna** \~ [grassland,] [few trees], **little rain,** **tropical climate** **Taiga** \~ **cold**, **largest biome,** **Temperate deciduous forest** \~ **4 seasons,** many trees **Tropical rainforest** \~ **year round warmth, rainy seasons** **Tundra** \~ **cold**, treeless, [ground is frozen ] **Climate** vs. **weather** \~ Climate is the **long** term avg / Weather is the **daily** avg **Keystone species** (one making a great impact) \~ They have a **great impact** on their habitats, **they affect many other species.** **Indicator species** (ones that are very sensitive to environmental changes) They **respond to environmental changes**, **they can be indicators of environmental health.** Impact of **mangrove trees** \~ [Their leaves excrete excess salt from brackish water. And their roots help stabilize coastlines and reduce erosion, and their roots provide habitat for fish. ] **Primary vs. secondary succession** \~ Primary begins where there is **no** soil EX\~ volcanic rock / Secondary begins when soil is **present** EX\~ Flood, fire. **Pioneer species** \~ They are the [first] species to inhabit environments [without vegetation.] EX\~ lichens move in and break down rocks into soil. **Biodiversity index** \~ Tells you how many species exist in a certain area. [Number of species in the area divided by total numbers of individuals.] EX\~ 3 species and 3 individuals = 1 (high biodiversity) / 1 species and 300 individuals =.003 (low biodiversity) **Invasive species** \~ They spread **quickly** and **widely**, **they are able to reproduce faster than the native species can adapt to the new competition.** **Line transect** \~ Method of sampling the [number of species on an area. ] **Climatograms** \~ They provide the **temp** and **rainfall** for an area and [can identify biomes.] / [They can also be used to measure effects of human activities on earth. ]